A central angle is an angle whose apex (vertex) is the center O of a circle and
whose legs (sides) are radii intersecting the circle in two distinct points A and B.
Given two points A and B, lines from them to center of the circle form the central
angle ∠AOB. The central angle is the smaller of the two at the center. It does not
In this lesson, you will learn about the definition and properties of a central angle.
You will also discover what the Central Angle Theorem is and...
The central angle of a circle is the angle based at the circle's center. In other
words, the vertex of the angle must be at the center of the circle. A central angle is
Central Angles, Arc Length, and Sector Area. An angle whose vertex is the centre
of a circle and whose sides pass through a pair of points on the circle is called ...
Central Angle and Arc Relationship: Learn about central angles and arcs within a
The radian measure of a central angle of a circle is defined as the ratio of the
length of the arc the angle subtends, s, divided by the radius of the circle, r.
Feb 10, 2013 ... Here are some examples of how to find the length of an arc, the measurement of
a central angle, and the area of a sector of a circle.
May 3, 2011 ... Math 9: Introduction to inscribed and central angles with a few examples. Check
out www.mathwithmrbarnes.ca for more math videos.
Central angle definition, an angle formed at the center of a circle by two radii. See